JP2672646B2 - Liquid crystal display element manufacturing method and liquid crystal display element manufacturing apparatus - Google Patents
Liquid crystal display element manufacturing method and liquid crystal display element manufacturing apparatusInfo
- Publication number
- JP2672646B2 JP2672646B2 JP1135900A JP13590089A JP2672646B2 JP 2672646 B2 JP2672646 B2 JP 2672646B2 JP 1135900 A JP1135900 A JP 1135900A JP 13590089 A JP13590089 A JP 13590089A JP 2672646 B2 JP2672646 B2 JP 2672646B2
- Authority
- JP
- Japan
- Prior art keywords
- glass substrate
- scribe
- liquid crystal
- crystal display
- scratch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
- C03B33/076—Laminated glass comprising interlayers
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/033—Apparatus for opening score lines in glass sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶表示素子の製造方法および液晶表示装
置の製造装置に係り、特に液晶表示素子のもとになるガ
ラス基板を切断する方法およびこの方法を実施するため
の装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a liquid crystal display device and a device of manufacturing a liquid crystal display device, and more particularly, to a method of cutting a glass substrate which is a base of the liquid crystal display device and An apparatus for performing this method.
従来より、液晶セルの製造方法としては、多数の上電
極と下電極が所定の配列で形成された２枚のガラス基板
を、前記各電極を内側にしかつ所定形状の封着材を介し
て貼り合わせた後、前記各ガラス基板の外面の切断予定
位置にスクライブ傷を付け、前記ガラス基板を湾曲させ
て前記２枚のガラス基板を片方ずつ切断するといつた方
法が一般に採用されている。Conventionally, as a method of manufacturing a liquid crystal cell, two glass substrates each having a large number of upper electrodes and lower electrodes formed in a predetermined arrangement are pasted with each electrode inside and a sealing material having a predetermined shape. A common method is generally employed in which after the combining, scribing scratches are made on the planned cutting positions on the outer surface of each of the glass substrates, the glass substrates are curved and the two glass substrates are cut one by one.
第５図は、従来よりこの種の加工に適用されているガ
ラス基板切断装置の概略構成図であつて、平板状の柔軟
シート21の上方にシリンダ22を垂直に配置し、このシリ
ンダ22より下方に延びるピストンロツド22aの下端部
に、先端部が鋭角状に形成された押圧子23が取り付けら
れている。FIG. 5 is a schematic configuration diagram of a glass substrate cutting device conventionally applied to this type of processing, in which a cylinder 22 is vertically arranged above a flat flexible sheet 21 and below the cylinder 22. At the lower end of the piston rod 22a extending to, a pusher 23 having a tip formed in an acute angle is attached.
この装置は、ガラス基板をの接合体24を柔軟シート21
上に載置し、柔軟シート21に接する一方のガラス基板24
aの切断予定位置に施されたスクライブ傷が前記押圧子2
3と対向するように接合体24の位置を調節したのち、前
記ピストンロツド22aを駆動して押圧子23を他方のガラ
ス基板24bの外面に押し当てる。このようにすると、押
圧子23の押圧力によつて柔軟シート21が弾性変形し、図
に示すように接合体24が湾曲する。その結果、スクライ
ブ傷に引張応力が集中してスクライブ傷の末端よりクラ
ツクが成長し、当該一方のガラス基板24aを切断するこ
とができる。This device uses a flexible sheet 21 for joining a bonded body 24 of glass substrates.
One glass substrate 24 placed on top and in contact with the flexible sheet 21
The scribe scratch at the planned cutting position of a is the pressing element 2
After the position of the bonded body 24 is adjusted so as to face 3, the piston rod 22a is driven to press the pressing element 23 against the outer surface of the other glass substrate 24b. In this case, the flexible sheet 21 is elastically deformed by the pressing force of the pressing element 23, and the joined body 24 is curved as shown in the figure. As a result, tensile stress concentrates on the scribe scratches, and cracks grow from the ends of the scribe scratches, so that the one glass substrate 24a can be cut.
第６図は、この種のガラス基板切断装置の他の例を示
す概略構成図であつて、上面に所定の間隔を隔てて２条
の支持突起25a,25bが突設された硬質の支持部材25の上
方に、鋭角状の先端部が前記支持突起25a,25bの中央部
と対向するようにして、前記と同様の押圧子26が配置さ
れている。（特公昭58−3212号公報記載）。FIG. 6 is a schematic configuration diagram showing another example of this type of glass substrate cutting device, which is a hard support member in which two support projections 25a and 25b are provided on the upper surface at predetermined intervals. Above the 25, a pressing member 26 similar to the above is arranged so that the sharp-edged tip end faces the central portion of the support protrusions 25a and 25b. (Described in JP-B-58-3212).
この装置は、ガラス基板の接合体24を支持部材25上に
載置し、支持突起25a,25bに接する一方のガラス基板24a
の切断予定位置に施されたスクライブ傷27が前記押圧子
26と対向するように接合体24の位置を調節したのち、押
圧子26を他方のガラス基板24bの外面に押し当てる。こ
のようにすると、支持突起25a,25bの先端部と支持部材2
5の平面部との間のクリアランスによつて接合体24が湾
曲し、当該一方のガラス基板14aが切断される。In this device, a bonded body 24 of glass substrates is placed on a support member 25, and one glass substrate 24a in contact with the support protrusions 25a, 25b.
The scribe scratch 27 at the planned cutting position of the
After adjusting the position of the bonded body 24 so as to face the 26, the pressing element 26 is pressed against the outer surface of the other glass substrate 24b. By doing so, the tips of the support protrusions 25a and 25b and the support member 2
The bonded body 24 is curved due to the clearance between the glass substrate 14a and the flat surface portion of 5, and the one glass substrate 14a is cut.
第７図は、この種のガラス基板切断装置のさらに他の
例を示す図であって、上面が平面状に形成されたプレス
型31の上方に、下面に複数個の凸起部32が突設された反
対側プレス型33を配置してなり、当該反対側プレス型33
に鋼球34および球面座35を介して加圧力を負荷するよう
になっている（特開平１−190412号公報に記載）。FIG. 7 is a view showing still another example of this type of glass substrate cutting apparatus, in which a plurality of protrusions 32 are projected on the lower surface above a press die 31 having a flat upper surface. The opposite side press die 33 is arranged, and the opposite side press die 33 is arranged.
Further, a pressure is applied through the steel ball 34 and the spherical seat 35 (described in Japanese Patent Laid-Open No. 1-190412).
この装置は、プレス型31の上面に置かれた弾性膜36上
にスクライブ傷37の形成面を下向きにして板状脆性材38
を置き、さらに当該板状脆性材38上に他の弾性膜39を重
ねる。そして、前記板状脆性材38に形成されたスクライ
ブ傷37と反対側プレス型33に突設された凸起部32とを合
致した後、反対側プレス型33を下向きに押圧して、板状
脆性材38に加圧力を負荷する。このようにすると、弾性
膜36の弾性とスクライブ傷37の形成部に負荷される加圧
力によって板状脆性材38が湾曲し、その結果スクライブ
傷37の末端よりクラックが成長して、板状脆性材38が切
断される。In this device, a plate-like brittle material 38 is formed on the elastic film 36 placed on the upper surface of the press die 31 with the surface on which the scribe scratches 37 are formed facing downward.
Then, another elastic film 39 is overlaid on the plate-like brittle material 38. Then, after matching the scribe scratches 37 formed on the plate-like brittle material 38 and the protrusions 32 protruding from the opposite side press die 33, the opposite side press die 33 is pressed downward to form a plate shape. A pressure is applied to the brittle material 38. In this way, the elasticity of the elastic film 36 and the pressure applied to the formation portion of the scribe scratches 37 bends the plate-like brittle material 38, and as a result, cracks grow from the ends of the scribe scratches 37, resulting in the plate-like brittleness. The material 38 is cut.
第５図および第６図に示した装置は、いずれもガラス
基板に局部的な押圧力を負荷し、しかもガラス基板の支
持部および負荷部以外の部分を保持する手段を備えない
ので、切断時にガラス基板の接合体が動揺して切断部分
が互いに衝合しやすく、切断面に欠けや不正な割れを生
じるので良品の歩留りが悪いという問題がある。The apparatus shown in FIG. 5 and FIG. 6 both apply a local pressing force to the glass substrate, and have no means for holding the supporting portion and the portion other than the load portion of the glass substrate. There is a problem in that the yield of good products is poor because the bonded parts of the glass substrates are shaken and the cut parts easily abut against each other, resulting in chipping or improper cracking of the cut surfaces.
また、第５図および第６図に示した装置は、予じめガ
ラス基板に多数のスクライブ傷を施したとしても１個所
ずつしか切断することができないため、液晶セルの製造
効率が悪いという問題がある。Further, in the device shown in FIGS. 5 and 6, even if a large number of scribe scratches are made on the pre-formed glass substrate, only one place can be cut, so that the manufacturing efficiency of the liquid crystal cell is poor. There is.
一方、第７図に示した装置は、板状脆性材38の上下を
弾性膜36,39にて覆うので、切断時に板状脆性材38が動
揺せず、きれいな切断面が得られる。また、板状脆性材
38に形成された複数条のスクライブ傷37に反対側プレス
型33に形成された複数条の凸起部32を同時に押し付ける
ので、複数個所の切断を同時に行うことができる。然る
に、この第７図に示した装置は、凸起部32の先端部が円
弧形に形成されており、かつ板状脆性材38に形成された
スクライブ傷37の形成位置に合致して形成されているた
め、スクライブ傷37の形成位置が異なる他の板状脆性材
の切断に適用することができない。例えば第６図に示す
ように、スクライブ傷の形成位置が異なる２枚のガラス
基板の接合体を切断して液晶セルを形成する場合に、第
１のガラス基板を切断する際と第２のガラス基板を切断
する際とでは、各ガラス基板に形成されているスクライ
ブ傷27の形成位置が異なるため、割断装置に取り付けら
れた反対側プレス型33をいちいち交換するか、あるいは
第１のガラス基板を切断する際と第２のガラス基板を切
断する際とで使用する割断装置を変更しなくてはなら
ず、作業性が悪いという問題がある。On the other hand, in the apparatus shown in FIG. 7, since the upper and lower sides of the plate-like brittle material 38 are covered with the elastic films 36 and 39, the plate-like brittle material 38 does not shake during cutting, and a clean cut surface can be obtained. In addition, plate-like brittle material
Since the multiple ridges 32 formed on the opposite press die 33 are simultaneously pressed against the multiple scribe scratches 37 formed on 38, it is possible to cut at multiple locations at the same time. Therefore, in the device shown in FIG. 7, the tip end of the protrusion 32 is formed in an arc shape and is formed in conformity with the formation position of the scribe scratch 37 formed on the plate-like brittle material 38. Therefore, it cannot be applied to the cutting of other plate-like brittle materials having different positions where the scribe scratches 37 are formed. For example, as shown in FIG. 6, when a liquid crystal cell is formed by cutting a bonded body of two glass substrates having different scribe scratch formation positions, the first glass substrate and the second glass substrate are cut. Since the formation position of the scribe scratches 27 formed on each glass substrate is different from that at the time of cutting the substrate, the opposite press die 33 attached to the cutting device is replaced one by one, or the first glass substrate is replaced. The cleaving device used for cutting and for cutting the second glass substrate must be changed, which causes a problem of poor workability.
本発明は前記した従来技術の諸課題を解決するために
なされたものであつて、その第１の目的は良品を高歩留
りかつ高能率に製造する方法を提供することにあり、ま
たその第２の目的はかかる製造方法を実施するに好適な
製造装置を提供することにある。The present invention has been made in order to solve the above-mentioned problems of the prior art, and its first object is to provide a method for producing a good product with high yield and high efficiency, and secondly. The purpose of is to provide a manufacturing apparatus suitable for carrying out such a manufacturing method.
本発明は前記第１の目的を達成するため、多数の上電
極又は下電極が所定の配列で形成された２枚のガラス基
板を、前記各電極を内側にし、かつ所定形状の封着材を
介して貼り合わせた後、前記各ガラス基板の外面の切断
予定位置にスクライブ傷を付け、前記ガラス基板を湾曲
させて前記２枚のガラス基板を片方ずつ切断する工程を
含む液晶表示装置の製造方法において、前記ガラス基板
の外面にスクライブ傷を付ける際、一方のガラス基板に
付けられるスクライブ傷と他方のガラス基板に付けられ
るスクライブ傷とを互いに所定距離だけ離間させると共
に、前記ガラス基板を切断する際、切断しようとする一
方のガラス基板と対向する他方のガラス基板の外面を、
前記一方のガラス基板に付けられたスクライブ傷および
これに隣接して前記他方のガラス基板に付けられたスク
ライブ傷と対向する位置で、前記所定距離よりも幅広の
頂面を有する支持突起にて支持し、切断しようとする前
記一方のガラス基板の外面全体に柔軟性の加圧体を均等
に押圧してガラス基板を湾曲させ、前記一方のガラス基
板のスクライブ傷の形成部に引張応力を集中するように
した。In order to achieve the first object of the present invention, two glass substrates on which a large number of upper electrodes or lower electrodes are formed in a predetermined arrangement are used, and each electrode is placed inside and a sealing material having a predetermined shape is provided. A method for manufacturing a liquid crystal display device, which includes a step of cutting the outer surface of each of the glass substrates with a scribe scratch at a planned cutting position, bending the glass substrates, and cutting the two glass substrates one by one In scribe scratches on the outer surface of the glass substrate, when the scribe scratches on one glass substrate and the scribe scratches on the other glass substrate are separated from each other by a predetermined distance, and the glass substrate is cut. , The outer surface of the other glass substrate facing the one glass substrate to be cut,
Supported by a supporting protrusion having a top surface wider than the predetermined distance at a position facing the scribe scratch on the one glass substrate and the scribe scratch on the other glass substrate adjacent to the scribe scratch. Then, a flexible pressurizing body is uniformly pressed on the entire outer surface of the one glass substrate to be cut to bend the glass substrate, and the tensile stress is concentrated on the scribe scratch forming portion of the one glass substrate. I did it.
また、前記第２の目的を達成するため、切断予定位置
にスクライブ傷が付けられたガラス基板の接合体を支持
する支持部材と、この支持部材によって支持されたガラ
ス基板を押圧して前記スクライブ傷の形成面に引張応力
をかける加圧手段とを備えた液晶表示素子の製造装置に
おいて、前記支持部材として、前記ガラス基板に付けら
れたスクライブ傷と対応する位置に平面状の頂面を有す
る複数個の支持突起が形成されたものを設けると共に、
前記加圧部材として、流体圧によって前記ガラス基板全
体を均一に押圧するダイヤフラム体を設けた。Further, in order to achieve the second object, a supporting member that supports a joined body of glass substrates having a scribe scratch at a planned cutting position, and the glass substrate supported by the supporting member is pressed to perform the scribe scratch. In a manufacturing apparatus for a liquid crystal display element, comprising: a pressing means for applying a tensile stress to a formation surface of the substrate, a plurality of flat top surfaces are provided as the supporting members at positions corresponding to the scribe scratches attached to the glass substrate. In addition to providing one with individual support protrusions,
As the pressing member, a diaphragm body that uniformly presses the entire glass substrate by fluid pressure is provided.
上面側のガラス基板に施されたスクライブ傷が支持部
材上に突設された支持突起と対向するようにしてガラス
基板の接合体を支持部材上に載置し、加圧部材を下降し
て柔軟性の押圧体を上面側のガラス基板上に押し当てる
と、スクライブ傷を介してその両側にほぼ均等な押圧力
が負荷され、接合体の支持部分が上に凸に湾曲する。よ
つて、スクライブ傷に引張応力を集中することができ、
スクライブ傷から当該上面側のガラス基板を切断するこ
とができる。Place the bonded body of the glass substrates on the support member so that the scribe scratches on the glass substrate on the upper surface face the support protrusions provided on the support member, and lower the pressure member to make it flexible. When a flexible pressing body is pressed against the glass substrate on the upper surface side, a substantially uniform pressing force is applied to both sides of the pressing body through the scribe scratch, and the supporting portion of the bonded body is curved upwardly. Therefore, tensile stress can be concentrated on the scribe scratches,
The glass substrate on the upper surface side can be cut from the scribe scratch.
その際、幅広にして柔軟性の押圧体によつて、スクラ
イブ傷の周辺が広く押圧されるので、切断時にガラス基
板の接合体が動揺することがなく、従つて切断面が互い
に衝合しないので、高精度の切断面を得ることができ
る。また、支持部材上に複数条の支持突起を突設するこ
とによつて、同時に複数個所の切断を行うことが可能と
なるので、生産性の向上を図ることができる。At that time, since the periphery of the scribe scratch is widely pressed by the wide and flexible pressing body, the joined body of the glass substrates does not sway at the time of cutting, and therefore the cut surfaces do not collide with each other. It is possible to obtain a highly accurate cut surface. In addition, by providing a plurality of support protrusions on the support member, it is possible to cut at a plurality of locations at the same time, so that productivity can be improved.
また、ガラス基板を、各ガラス基板の外面に付けられ
るスクライブ傷の瞬間距離よりも幅広の頂面を有する支
持突起にて支持すると、一方のガラス基板を切断する際
にも、また他方のガラス基板を切断する際にも、スクラ
イブ傷の形成位置を１つの支持部材にて支持することが
できるので、スクライブ傷の形成位置が異なる２枚のガ
ラス基板の接合体からなる液晶セルの形成を容易化でき
る。Further, when the glass substrate is supported by a supporting protrusion having a top surface wider than the instantaneous distance of scribe scratches attached to the outer surface of each glass substrate, one glass substrate is cut and the other glass substrate is also supported. Even when cutting, the formation position of the scribe scratch can be supported by one supporting member, which facilitates formation of a liquid crystal cell composed of a bonded body of two glass substrates having different formation positions of the scribe scratch. it can.
本発明の説明に先立ち、液晶表示素子のもとになるガ
ラス基板の接合体を第２図に基づいて説明する。Prior to the description of the present invention, a bonded body of glass substrates which is a basis of a liquid crystal display device will be described with reference to FIG.
この図に示すように、接合体１は、所定形状の封着材
２を介して２枚のガラス基板3,4を貼り合わせて成り、
切断以前の工程で、一方のガラス基板３の外面の切断予
定位置にスクライブ傷５が、また他方のガラス基板４の
外面の切断予定位置にスクライブ傷６が付けられる。前
記封着材２および２枚のガラス基板3,4にて囲まれた各
小区画内には所望の上電極および下電極が対向に形成さ
れ、かつ液晶配向処理が施されている（これらについて
は、本発明の要旨でないので図示を省略する）。従つ
て、前記各スクライブ傷を起点として各ガラス基板3,4
の板厚方向にクラツクを成長させ、切断することによつ
て、所望の液晶セルを取り出すことができる。As shown in this figure, the bonded body 1 is formed by bonding two glass substrates 3 and 4 via a sealing material 2 having a predetermined shape,
In the process before cutting, scribe scratches 5 are formed on the outer surface of one glass substrate 3 at the planned cutting positions, and scribe scratches 6 are formed on the outer surface of the other glass substrate 4 at the planned cutting positions. Desired upper and lower electrodes are formed opposite to each other in each of the small compartments surrounded by the sealing material 2 and the two glass substrates 3 and 4, and a liquid crystal alignment treatment is performed (for these). Is omitted because it is not the gist of the present invention). Therefore, each glass substrate 3, 4 from the scribe scratches as a starting point
A desired liquid crystal cell can be taken out by growing a crack in the plate thickness direction and cutting it.
次に、本発明に係る液晶表示素子の製造装置の一例を
第１図に基づいて説明する。Next, an example of an apparatus for manufacturing a liquid crystal display element according to the present invention will be described with reference to FIG.
この図に示すように、本実施例の装置は、上面に２条
の支持突起11a,11bが相平行に突設された支持部材11
と、前記支持突起11a,11bの間隔d1よりも幅広に形成さ
れた加圧部材12とから成る。As shown in this figure, the apparatus of this embodiment has a support member 11 having two support projections 11a and 11b projecting parallel to each other on its upper surface.
And a pressing member 12 formed wider than the distance d 1 between the support protrusions 11a and 11b.
前記支持部材11は、全体が硬質材料によつて形成され
ており、加圧時に変形しないような剛性が付与されてい
る。前記２条の支持突起11a,11bは頂面が平面状に形成
されており、その幅w1は、前記一方のガラス基板３に付
けられたスクライブ傷５とこれに隣接する前記他方のガ
ラス基板４に付けられたスクライブ傷６との幅w2よりも
幅広に形成される。また、２条の支持突起11a,11bの間
隔d1は、前記一方のガラス基板３に付けられたスクライ
ブ傷５とこれに隣接する前記他方のガラス基板４に付け
られたスクライブ傷６の中間部のピツチd2に等しく形成
される。前記支持突起11a,11bの高さｈは、ガラス基板
3,4の厚さやスクライブ傷5,6のピツチ等によつて適宜変
更可能であるが、通常100μｍ程度あれば足りる。The supporting member 11 is entirely made of a hard material, and is provided with rigidity so as not to deform when being pressed. The two support protrusions 11a and 11b have top surfaces formed in a flat shape, and the width w 1 thereof is such that the scribe scratch 5 attached to the one glass substrate 3 and the other glass substrate adjacent thereto. It is formed wider than the width w 2 with the scribe scratch 6 attached to the surface 4. Further, the distance d 1 between the two support protrusions 11a and 11b is defined by an intermediate portion between the scribe scratch 5 attached to the one glass substrate 3 and the scribe scratch 6 attached to the other glass substrate 4 adjacent thereto. Is formed equal to the pitch d 2 . The height h of the support protrusions 11a and 11b is equal to that of the glass substrate.
The thickness can be changed depending on the thickness of 3, 4 and the pitch of the scribe scratches 5, 6, etc., but normally about 100 μm is sufficient.
加圧部材12は、空気の給排気口13とこれに続く空気室
14とが形成された基体15と、前記空気室を密封するよう
にこの基体15の周囲に張設されたダイヤフラム体16とか
ら成る。この加圧部材12は、前記給排気口13を介して前
記空気室14内に所定圧力の空気を供給したとき、下方に
膨張したダイヤフラム体16が支持部材11上に載置された
ガラス基板の接合体１を所定の圧力で押圧できるような
位置に設定される。The pressurizing member 12 includes an air supply / exhaust port 13 and an air chamber that follows it.
And a diaphragm body 16 stretched around the base body 15 so as to seal the air chamber. The pressurizing member 12 is a glass substrate on which the diaphragm body 16 expanded downward when the air having a predetermined pressure is supplied into the air chamber 14 through the air supply / exhaust port 13 is placed on the support member 11. The position is set so that the bonded body 1 can be pressed with a predetermined pressure.
前記空気室14に供給される空気圧は、ガラス基板3,4
の厚さやスクライブ傷5,6のピツチ等によつて適宜変更
可能であるが、通常1.0〜1.5kg/cm2程度で足りる。The air pressure supplied to the air chamber 14 is the glass substrate 3,4.
The thickness can be appropriately changed depending on the thickness of the scribe and the pitch of the scribe scratches 5 and 6, etc., but usually 1.0 to 1.5 kg / cm 2 is sufficient.
以下、前記装置を用いた本発明に係る液晶表示素子の
製造方法を第３図および第４図によつて説明する。Hereinafter, a method of manufacturing a liquid crystal display element according to the present invention using the above apparatus will be described with reference to FIGS. 3 and 4.
まず、第３図に示すように、ガラス基板の接合体１を
支持部材11上に載置し、上面側のガラス基板３に付けら
れたスクライブ傷５が支持突起11a,11b上に対応するよ
うに、その設定位置を調節する。First, as shown in FIG. 3, the joined body 1 of glass substrates is placed on the support member 11, and the scribe scratches 5 attached to the glass substrate 3 on the upper surface side correspond to the support protrusions 11a and 11b. Then, adjust the setting position.
次いで、給排気口13より空気室14に圧力空気を供給し
てダイヤフラム体16を膨張させ、その押圧力にてガラス
基板の接合体１を下向きに押圧する。Then, pressurized air is supplied to the air chamber 14 from the air supply / exhaust port 13 to expand the diaphragm body 16, and the bonding force 1 of the glass substrate is pressed downward by the pressing force.
このようにすると、支持突起11a,11bの頂面と支持部
材11の平面部との段差d1によつて接合体１が湾曲し、上
面側のガラス基板３に付けられたスクライブ傷５の両側
に引張応力が作用する。スクライブ傷５には、この引張
応力が集中するため、当該スクライブ傷５を起点として
ガラス基板３の厚さ方向にクラツクが成長し、ガラス基
板３が切断される。なお、このとき、下面側のガラス基
板４に付けられたスクライブ傷６の両側には圧縮応力が
作用するため、下面側のガラス基板４が切断されること
はない。In this way, the joined body 1 is curved due to the step d 1 between the top surfaces of the support protrusions 11a and 11b and the flat surface of the support member 11, and both sides of the scribe scratch 5 attached to the glass substrate 3 on the upper surface side are curved. Tensile stress acts on. Since this tensile stress concentrates on the scribe scratches 5, cracks grow in the thickness direction of the glass substrate 3 starting from the scribe scratches 5 and the glass substrate 3 is cut. At this time, since compressive stress acts on both sides of the scribe scratches 6 attached to the lower glass substrate 4, the lower glass substrate 4 is not cut.
以下、ガラス基板の接合体１を上下反転し、前記と同
様の操作を行えば下面側のガラス基板４を切断すること
ができ、これによつて所望とする液晶セルを取り出すこ
とができる。Thereafter, the bonded body 1 of the glass substrates is turned upside down and the same operation as described above is performed, whereby the glass substrate 4 on the lower surface side can be cut, whereby a desired liquid crystal cell can be taken out.
前記実施例に係る液晶表示素子の製造装置および製造
方法は、柔軟性のダイヤフラム体16によつてスクライブ
傷５の周辺を広く押えた状態でガラス基板の接合体１を
押圧するので、切断時にガラス基板の接合体１が動揺す
ることがなく、従つて切断面が互いに衝合することがな
いので、高精度の切断面を得ることができる。In the liquid crystal display device manufacturing apparatus and manufacturing method according to the above-described embodiment, since the flexible diaphragm body 16 presses the bonded body 1 of the glass substrates in a state of widely pressing the periphery of the scribe scratches 5, the glass substrate is cut at the time of cutting. Since the bonded body 1 of the substrates does not sway and the cut surfaces do not collide with each other, a highly accurate cut surface can be obtained.
また、支持部材11に２条の支持突起11a,11bを突設
し、同時に２個所の切断を行うようにしたので生産性に
優れる。Further, since the support member 11 is provided with the two support protrusions 11a and 11b so as to project at two places at the same time, the productivity is excellent.
さらに、支持突起11a,11bの頂面を平面状に形成し、
その幅w1を、一方のガラス基板３に付けられたスクライ
ブ傷５とこれに隣接する他方のガラス基板４に付けられ
たスクライブ傷６との幅w2よりも幅広に形成したので、
１つの支持部材11にてスクライブ傷のピツチが異なる部
分を共に切断することができる。Furthermore, the top surfaces of the support protrusions 11a and 11b are formed into a flat shape,
Since the width w 1 is formed wider than the width w 2 between the scribe scratch 5 attached to one glass substrate 3 and the scribe scratch 6 attached to the other glass substrate 4 adjacent to the glass substrate 3,
With one support member 11, it is possible to cut together the portions having different scribe scratches.
なお、前記実施例においては柔軟性の押圧体としてダ
イヤフラム体16を用いたが、これに代えて、基体の下面
に適度の柔軟性を有する弾性体を設け、加圧部材を上下
動することによつてガラス基板の接合体１を押圧するよ
うにすることもできる。Although the diaphragm body 16 is used as the flexible pressing body in the above embodiment, instead of this, an elastic body having appropriate flexibility is provided on the lower surface of the base body to move the pressing member up and down. Therefore, the bonded body 1 of the glass substrates can be pressed.
また、前記実施例においては、支持部材11上に２条の
支持突起11a,11bを突設したが、１ないし任意の複数条
の支持突起を突設することができる。Further, in the above-described embodiment, the two support protrusions 11a and 11b are provided on the support member 11 in a protruding manner, but one or an arbitrary plurality of support protrusions may be provided.
その他、接合体の構成やスクライブ傷の配列、それに
支持突起の寸法や配列等については、必要に応じて適宜
設計することができる。In addition, the configuration of the bonded body, the arrangement of the scribe scratches, the size and arrangement of the support protrusions, and the like can be appropriately designed as necessary.
以上説明したように、本発明によると、柔軟性の押圧
体によつてスクライブ傷の周辺を広く押圧するようにし
たので、切断時にガラス基板の接合体が動揺せず、従つ
て切断面同士が互いに衝合することがないので、高精度
の切断面を得ることができる。As described above, according to the present invention, since the periphery of the scribe scratch is widely pressed by the flexible pressing body, the joined body of the glass substrates does not shake during cutting, and accordingly the cut surfaces are Since they do not abut each other, a highly accurate cut surface can be obtained.
また、支持部材上に複数条の支持突起を突設すること
によつて、同時に複数個所の切断を行うことが可能とな
るので、生産性の向上を図ることができる。In addition, by providing a plurality of support protrusions on the support member, it is possible to cut at a plurality of locations at the same time, so that productivity can be improved.
さらに、本発明によると、ガラス基板を、各ガラス基
板の外面に付けられるスクライブ傷の離間距離よりも幅
広の頂面を有する支持突起にて支持するので、一方のガ
ラス基板を切断する際にも、また他方のガラス基板を切
断する際にも、スクライブ傷の形成位置を１つの支持部
材にて支持することができ、スクライブ傷の形成位置が
異なる２枚のガラス基板の接合体からなる液晶セルの形
成を容易化できる。Furthermore, according to the present invention, since the glass substrate is supported by the supporting protrusion having a top surface wider than the distance between the scribe scratches attached to the outer surface of each glass substrate, even when one of the glass substrates is cut. Further, even when the other glass substrate is cut, the position where the scribe scratches are formed can be supported by one supporting member, and the liquid crystal cell includes a bonded body of two glass substrates having different positions where the scribe scratches are formed. Can be easily formed.
第１図ないし第４図は本発明に係る液晶表示素子の製造
装置および製造方法を説明するための図であつて、第１
図は液晶表示素子製造装置の一例を示す断面図、第２図
は液晶表示素子のもとになるガラス基板の断面図、第３
図はガラス基板接合体のセツテイング工程を示す断面
図、第４図はガラス基板接合体の切断工程を示す断面図
である。 第５図および第６図は従来技術を説明するための図であ
つて、第５図は従来の液晶表示素子製造装置の第１例を
示す断面図、第６図は従来の液晶表示素子製造装置の第
２例を示す断面図、第７図は従来の液晶表示素子製造装
置の第３例を示す断面図である。 １……ガラス基板の接合体、２……封着材、3,4……ガ
ラス基板、5,6……スクライブ傷、11……支持部材、11
a,11b……支持突起、12……加圧部材、13……空気の給
排気口、16……ダイヤフラム体。1 to 4 are views for explaining a manufacturing apparatus and a manufacturing method of a liquid crystal display element according to the present invention.
FIG. 2 is a cross-sectional view showing an example of a liquid crystal display device manufacturing apparatus, FIG. 2 is a cross-sectional view of a glass substrate which is the basis of the liquid crystal display device, and FIG.
FIG. 4 is a sectional view showing a step of setting a glass substrate joined body, and FIG. 4 is a sectional view showing a step of cutting a glass substrate joined body. 5 and 6 are views for explaining a conventional technique. FIG. 5 is a sectional view showing a first example of a conventional liquid crystal display element manufacturing apparatus, and FIG. 6 is a conventional liquid crystal display element manufacturing apparatus. FIG. 7 is a sectional view showing a second example of the device, and FIG. 7 is a sectional view showing a third example of the conventional liquid crystal display element manufacturing apparatus. 1 ... glass substrate bonded body, 2 ... sealing material, 3,4 ... glass substrate, 5,6 ... scribe scratch, 11 ... support member, 11
a, 11b …… Supporting protrusion, 12 …… Pressurizing member, 13 …… Air supply / exhaust port, 16 …… Diaphragm body.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−28748（ＪＰ，Ａ) 特開 昭54−157642（ＪＰ，Ａ) 特開 平１−190412（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-50-28748 (JP, A) JP-A-54-157642 (JP, A) JP-A-190412 (JP, A)
Claims (2)
成された２枚のガラス基板を、前記各電極を内側にし、
かつ所定形状の封着材を介して貼り合わせた後、前記各
ガラス基板の外面の切断予定位置にスクライブ傷を付
け、前記ガラス基板を湾曲させて前記２枚のガラス基板
を片方ずつ切断する工程を含む液晶表示素子の製造方法
において、前記ガラス基板の外面にスクライブ傷を付け
る際、一方のガラス基板に付けられるスクライブ傷と他
方のガラス基板に付けられるスクライブ傷とを互いに所
定距離だけ離間させると共に、前記ガラス基板を切断す
る際、切断しようとする一方のガラス基板と対向する他
方のガラス基板の外面を、前記一方のガラス基板に付け
られたスクライブ傷およびこれに隣接して前記他方のガ
ラス基板に付けられたスクライブ傷と対向する位置で、
前記所定距離よりも幅広の頂面を有する支持突起にて支
持し、切断しようとする前記一方のガラス基板の外面全
体に柔軟性の加圧体を均等に押圧してガラス基板を湾曲
させ、前記一方のガラス基板のスクライブ傷の形成部に
引張応力を集中させることを特徴とする液晶表示素子の
製造方法。1. A pair of glass substrates, each having a plurality of upper electrodes or lower electrodes formed in a predetermined arrangement, with each of the electrodes inside.
And a step of cutting the two glass substrates one by one by making a scribe scratch on the outer surface of each of the glass substrates at a predetermined cutting position after bonding through a sealing material having a predetermined shape. In the method of manufacturing a liquid crystal display device including, when making a scribe scratch on the outer surface of the glass substrate, while separating the scribe scratches on one glass substrate and the scribe scratches on the other glass substrate from each other by a predetermined distance. , When cutting the glass substrate, the outer surface of the other glass substrate facing one glass substrate to be cut, the scribe scratches attached to the one glass substrate and the other glass substrate adjacent thereto At the position facing the scribe scratch on the
Supported by a support protrusion having a top surface wider than the predetermined distance, the flexible pressurizing body is uniformly pressed on the entire outer surface of the one glass substrate to be cut to bend the glass substrate, A method of manufacturing a liquid crystal display device, comprising the step of concentrating tensile stress on a scribe-scratched portion of one glass substrate.
ガラス基板の接合体を支持する支持部材と、この支持部
材によって支持されたガラス基板を押圧して前記スクラ
イブ傷の形成面に引張応力をかける加圧手段とを備えた
液晶表示素子の製造装置において、前記支持部材とし
て、前記ガラス基板に付けられたスクライブ傷と対応す
る位置に平面状の頂面を有する複数個の支持突起が形成
されたものを設けると共に、前記加圧部材として、流体
圧によって前記ガラス基板全体を均一に押圧するダイヤ
フラム体を設けたことを特徴とする液晶表示素子の製造
装置。2. A support member for supporting a joined body of glass substrates having a scribe scratch at a planned cutting position, and a glass substrate supported by the support member is pressed to apply tensile stress to the surface on which the scribe scratch is formed. In a liquid crystal display device manufacturing apparatus including a pressing means for applying, a plurality of supporting protrusions having a planar top surface are formed as the supporting members at positions corresponding to scribe scratches attached to the glass substrate. And a diaphragm body that uniformly presses the entire glass substrate by fluid pressure as the pressing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135900A JP2672646B2 (en) | 1989-05-31 | 1989-05-31 | Liquid crystal display element manufacturing method and liquid crystal display element manufacturing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135900A JP2672646B2 (en) | 1989-05-31 | 1989-05-31 | Liquid crystal display element manufacturing method and liquid crystal display element manufacturing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH032720A JPH032720A (en) | 1991-01-09 |
| JP2672646B2 true JP2672646B2 (en) | 1997-11-05 |
Family
ID=15162448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1135900A Expired - Lifetime JP2672646B2 (en) | 1989-05-31 | 1989-05-31 | Liquid crystal display element manufacturing method and liquid crystal display element manufacturing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2672646B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372475A (en) * | 1990-08-10 | 1994-12-13 | Nippondenso Co., Ltd. | Fuel pump |
| JP3307019B2 (en) * | 1992-12-08 | 2002-07-24 | 株式会社デンソー | Regenerative pump |
| GB9721804D0 (en) | 1997-10-15 | 1997-12-17 | Gec Marconi Avionics Holdings | Improvements in or relating to liquid crystal displays |
| JP5216522B2 (en) * | 2008-10-07 | 2013-06-19 | 三星ダイヤモンド工業株式会社 | Brittle material pliers |
| JP5935378B2 (en) * | 2012-02-21 | 2016-06-15 | 日産自動車株式会社 | Magnet piece manufacturing apparatus constituting field pole magnet body |
| JP6406532B2 (en) * | 2017-06-30 | 2018-10-17 | 三星ダイヤモンド工業株式会社 | Fragment material substrate cutting device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5028748A (en) * | 1973-07-13 | 1975-03-24 | ||
| JPS583212B2 (en) * | 1978-06-02 | 1983-01-20 | 株式会社日立製作所 | Manufacturing method of liquid crystal display element |
| JPH01190412A (en) * | 1988-01-26 | 1989-07-31 | Nachi Fujikoshi Corp | Cutting of plate-shaped brittle material and its device |
-
1989
- 1989-05-31 JP JP1135900A patent/JP2672646B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032720A (en) | 1991-01-09 |
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